The city Health Department last week began sending brochures to businesses that would be affected by the latest ban, including restaurants, bars and any “food service” establishment subject to letter grades.

And merchants were shocked to see the broad sweep of the new rules.

“It’s not fair. If you’re gonna tell me what to do, it’s no good,” said Steve DiMaggio of Caruso’s in Cobble Hill, Brooklyn. “It’s gonna cost a lot more.”

And consumers, especially families, will soon see how the rules will affect their wallets — forcing them to pay higher unit prices for smaller bottles.